John demarest



(No Model.)

J. DEMAREST. Flushng'Cistern. No. 232,069.

w. W N 4,6 M M @W @a N-PETERS. FHOTUJJTMOGRAPNER, WASHINGTON, n C

NiTED STATES PATENT OFFICE.

JOHN DEMAREST, OF NEW YORK, N. Y.

FLUSl-IING ClSTERNS.

SPECIFICATION forming part of Letters Patent No. 232,009, datedSeptember 7, 1880.

Application tiled July 22, 1880. (No model.)

To all whom it may concern Be it known that I, JOHN DEMAREST, of thecityand State of New Y0rk,haveinvented an Improvement in Oisterns forWater-Closets and Urinals, of which the following is a specication.

Heretofore, where a number of water-closets or urinals are in one place,it is usual to have a long cistern for water above such closets orurinals and a service-box to each closet placed below the cistern. rIhisarrangement is eX- pensive and difcult of access when repairs areneeded.

I make use of a separate cistern to each water-closet or urinal. e Oneservice-pipe runs along the row of cisterns and supplies water to themall, there being a ball-cock and sup-V ply-pipe to one of the cisternsor to a separate cistern, so that the water will be furnished alike toall the closet-cisterns.

In each cistern there is a valve and valve seats, constructed ashereinafter set forth, and a pipe from the cistern to the closet orurinal. When the valve is raised water is allowed to iiow from thecistern to the closet, and the pipe admitting water to the cistern issimultaneously closed.

In the drawings, Figure l is a vertical section of the eistern andpipes, and Fig. 2 is a sectional elevation at right angles to Fig. 1.

The cistern a is preferably of cast-iron and ot' a size to hold therequired quantity of water. In the bottom of the cistern are twoopenings for the screw-tubes b and c that project downwardly from theplate d, and these screwtubes receive the clamping-rings t' that securethe parts to the cistern, and they also receive the couplin ofthe pipek, leading to the watercloset, and the pipe l,by which wateris supplied.There is a curved pipe extending from the screw-tube c up to thecylinder 7L, which is in line with the screw-tube b, and through thiscylinder h the valve-stem o passes, having upon it the double valve r s.

The valve-stein is pressed down by the spring t and raised by theconnecting-wire u, lever lv, and wire fw to the closet-pull. It ispreferable to have the lever within the cistern and to have the wire wpass through the tube u', that rises from the bottom of the cisterntoaheight greater than that of the water as it stands in the tank orcistern. Usually the valve will be kept upon the seat e on the plate dby the pressure of the spring, and in that position the water-waythrough c and h is open, and the water finds its way from the pipe l andrises to the same level in the cistern that it does in the cistern towhich the water is supplied with a ball-cock.

Then the pull of' the water-closet is operated the valve r is liftedoli1 its seat e and the water is free to ow to the closet. At the sametime the valve s closes upwardly against the lower end of the cylinder hand prevents water running into the cistern until the watercloset pullis released and the valve r closes the passage to the water-closet.

For hopper water-closets the seat may be connected with the wire fw, sothat the valve will be raised sufliciently to allow water to run whilethe seat is depressed.

I claim as my inventionrlhe combination, with the cistern a, of thetubes l) c, cylinder 7L, double valve 1' s, stem o, and spring t, theparts being arranged and operating substantially as set forth, to openthe water-way to the closet when the inlet waterway is closed, as setforth.

Signed by me this 15th day of July, A. D. 1880.

JOHN DEMAREST.

Witnesses Louis P. BECK, AUGUSTUS W. Mo'r'r.

